S7009 CE/HCP4AQBCA
Hybrid Ceramic Super Precision Bearings
Image may differ from product. See technical specification for details.
Basic Information
Main Dimensions
Ball & Washer Dimensions
Performance
Materials
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
S7009 CE/HCP4AQBCA Bearing Product Overview & Core Advantages
The S7009 CE/HCP4AQBCA is a precision quadruplex matched set of double row angular contact ball bearings, engineered for the most demanding high-precision applications. This metric system bearing set is characterized by its extra light preload (Class A) and back-to-back (QBC) arrangement, delivering exceptional system rigidity and rotational accuracy. Its core advantages include superior high-speed capability with a limiting speed of 41,000 rpm, the ability to handle combined loads (radial and bidirectional axial loads), and outstanding operational stability due to its matched set construction and ceramic ball material.
S7009 CE/HCP4AQBCA Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning | Significance |
|---|---|---|
| S7009 | Bearing series and size designation | Indicates a 45mm bore, 75mm OD, 64mm width double row angular contact bearing. |
| CE | Hybrid Ceramic (Ceramic balls, Steel rings) | Enables higher speeds, reduced friction, and longer service life. |
| HC | Phenolic Resin Cage | Provides lightweight construction and excellent performance at high speeds. |
| P4A | High Precision Tolerance Class | Guarantees extremely tight dimensional and running accuracy for precision machinery. |
| QBC | Quadruplex Back-to-Back Matched Set | Four bearings supplied as a pre-matched set in a back-to-back arrangement for maximum system rigidity. |
S7009 CE/HCP4AQBCA Bearing Structural Features & Performance Benefits
Unmatched Rigidity and Stability: The quadruplex back-to-back (QBC) arrangement of four double row angular contact ball bearings creates an exceptionally stiff bearing system, capable of resisting complex moment loads and maintaining precise shaft positioning.
Superior High-Speed Performance: The combination of a lightweight phenolic resin cage (HC) and low-density ceramic balls (CE) significantly reduces centrifugal forces, enabling stable operation at the high limiting speed of 41,000 rpm.
High Load Capacity: The double row design and a 15° contact angle provide a high radial dynamic load rating of 7605 lbf and a radial static load rating of 7650 lbf, making it suitable for applications with significant combined loads.
Precision and Longevity: Manufactured to P4A tolerance class with an extra light preload, this bearing set ensures minimal runout and smooth, precise rotation. The sealed design with grease lubrication protects against contamination and provides reliable, long-term performance.
S7009 CE/HCP4AQBCA Bearing Typical Application Areas
The S7009 CE/HCP4AQBCA is ideally suited for high-performance machinery requiring extreme precision, rigidity, and speed. Key application areas include:
- High-Frequency Machine Tool Spindles (e.g., for milling, grinding, and drilling)
- Precision Robotic Drives and Actuators
- Aerospace and Defense Instrumentation
- High-Speed Centrifuges and Compressors
- Advanced Medical and Laboratory Equipment
